31 lines
511 B
GLSL
31 lines
511 B
GLSL
!!ver 130
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!!permu FOG
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!!samps reflectcube
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!!cvardf gl_mono=0
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#include "sys/defs.h"
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#include "sys/fog.h"
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varying vec3 pos;
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#ifdef VERTEX_SHADER
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void main ()
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{
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pos = v_position.xyz - e_eyepos;
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pos.y = -pos.y;
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gl_Position = ftetransform();
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}
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#endif
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#ifdef FRAGMENT_SHADER
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void main ()
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{
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vec4 skybox = textureCube(s_reflectcube, pos);
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if (gl_mono == 1.0) {
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float bw = (skybox.r + skybox.g + skybox.b) / 3.0;
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skybox.rgb = vec3(bw, bw, bw) * 1.5;
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}
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gl_FragColor = vec4(fog3(skybox.rgb), 1.0);
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}
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#endif
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